is it this one? http://www.mangago.me/read-manga/oko_sama_star/
there are a lot of mangas like that which come to mind
That one was my first thought as well.
You also have these ones:
http://www.mangago.me/read-manga/ore_no_kirai_na_yankee_kun/
http://www.mangago.me/read-manga/nirameba_koi/
http://www.mangago.me/read-manga/you_re_my_princess/
http://www.mangago.me/read-manga/shishi_mo_kobamazu/
http://www.mangago.me/read-manga/eyes_speak_more_love_than_the_mouth/
I know there's one about a new student who pretends to be nice but he's a closet otaku, and a delinquent guy takes a liking to him and wants him to be his Master. Can't remember the name. Then there's another of a scary-looking guy who's in love with a playboy-type student, who agrees to go out with him. Can't remember the name either (that's what I get for not tagging the things I've read).

Okay so there is this yaoi manga I am looking for and I remember the basic plot. Okay its highschool setting and one of the characters looks mean but really isn't, his aura is scary and so is his face. Everyone at the school thinks he's scary except one guy and he starts liking the guy. The guy who doesn't think he's scary is pretty popular and also is beautiful..that's all I remember. Hopefully someone can find it for me